Client gets `"SUCCESS"` from server in changefeeds test.
Check for the correct arguments to `:run`.
Add `self` to more `__init` functions.
Make tracebacks easier to read in test results.
Forward the results to travis-ci.
Remove the notice on the build script.

All code in the repository can be under one license.
Move the rest of the TCP logic under the Connection class.
Add a conversion for lengths received from server.